diff options
| author | Bob Moore <robert.moore@intel.com> | 2008-04-10 19:06:43 +0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-04-22 19:08:51 -0400 |
| commit | cd0b2248241f4146152fb04a6bf4bccb6ce0478a (patch) | |
| tree | 072ccaed2ccaa225c6012356c280788fbf2afe16 /drivers/acpi/utilities | |
| parent | 7a5bb9964512c5313af19310c6a3002ec54f7336 (diff) | |
| download | linux-cd0b2248241f4146152fb04a6bf4bccb6ce0478a.tar.gz linux-cd0b2248241f4146152fb04a6bf4bccb6ce0478a.tar.bz2 linux-cd0b2248241f4146152fb04a6bf4bccb6ce0478a.zip | |
ACPICA: Fixes for external Reference Objects
All Reference Objects returned via the AcpiEvaluteObject interface
are now marked as type "REFERENCE" instead of "ANY". The type ANY
is now reservered for NULL objects - either NULL package elements
or unresolved named references.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/utilities')
| -rw-r--r-- | drivers/acpi/utilities/utcopy.c | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/drivers/acpi/utilities/utcopy.c b/drivers/acpi/utilities/utcopy.c index 4e9a62b34aef..2a57c2c2c782 100644 --- a/drivers/acpi/utilities/utcopy.c +++ b/drivers/acpi/utilities/utcopy.c @@ -43,6 +43,8 @@ #include <acpi/acpi.h> #include <acpi/amlcode.h> +#include <acpi/acnamesp.h> + #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("utcopy") @@ -172,22 +174,21 @@ acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object, case ACPI_TYPE_LOCAL_REFERENCE: - /* - * This is an object reference. Attempt to dereference it. - */ + /* This is an object reference. */ + switch (internal_object->reference.opcode) { case AML_INT_NAMEPATH_OP: /* For namepath, return the object handle ("reference") */ default: - /* - * Use the object type of "Any" to indicate a reference - * to object containing a handle to an ACPI named object. - */ - external_object->type = ACPI_TYPE_ANY; + + /* We are referring to the namespace node */ + external_object->reference.handle = internal_object->reference.node; + external_object->reference.actual_type = + acpi_ns_get_type(internal_object->reference.node); break; } break; @@ -460,6 +461,7 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object, case ACPI_TYPE_STRING: case ACPI_TYPE_BUFFER: case ACPI_TYPE_INTEGER: + case ACPI_TYPE_LOCAL_REFERENCE: internal_object = acpi_ut_create_internal_object((u8) external_object-> @@ -469,6 +471,11 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object, } break; + case ACPI_TYPE_ANY: /* This is the case for a NULL object */ + + *ret_internal_object = NULL; + return_ACPI_STATUS(AE_OK); + default: /* All other types are not supported */ @@ -522,6 +529,15 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object, internal_object->integer.value = external_object->integer.value; break; + case ACPI_TYPE_LOCAL_REFERENCE: + + /* TBD: should validate incoming handle */ + + internal_object->reference.opcode = AML_INT_NAMEPATH_OP; + internal_object->reference.node = + external_object->reference.handle; + break; + default: /* Other types can't get here */ break; |